//Class CPoint：位置坐标类
//int X:X轴坐标
//int Y:Y轴坐标
function CPoint(x, y) {
	this.X = x;
	this.Y = y;
}

//class CKeyPoint：图形控制关键点的类
//int X:点在X轴位置
//int Y:点在Y轴位置
//bool IsSelected：关键点是否被选中
function CKeyPoint(x, y, boolselect) {
	this.X = x;
	this.Y = y;
	this.IsSelected = false;
}
